Chinese JIAOLONG´s first scientific cruise in 2013

After the successful sea trial in Mariana Trench in June 2012, JIAOLONG conducted its maiden scientific cruise from June 10^th to Sept 20^th, 2013. The cruise was composed of three legs in South China Sea, Clarion-Clipperton Fracture Zone of Northeast Pacific and cobalt-rich crust seamounts of Northwest Pacific respectively. This paper will mainly present JIAOLONG´s positioning system sea trial results, the sampling in dives and preliminary scientific results at a cold seep site in South China Sea, four sites in Clarion-Clipperton Fracture Zone and two sites in cobalt-rich crust seamounts in Northwest Pacific. JIAOLONG´s stability, maneuverability, capability and positioning ability were very well demonstrated during the dives in the first scientific cruise. With scientist in-situ, JIAOLONG´s great advantages over the other deep sea facilities have been fully revealed at the seabed investigation. In the future, JIAOLONG will play a more important role in the deep sea scientific exploration and other applications.